I’m gonna say 9050. Why not 
I’ll throw 4347 into the hat.
whhaoo there is a lot of people here !
i try 1312 
2 Likes
7654
good as any I suppose.
To be honest, I just used a random number generator:
6453
I’m guessing 1, because it’s the first prototype
420 
1 Like
9999!
Piece of history!
Can’t believe no one took:
2020
So that’s my guess
2 Likes
I’m gonna guess 117.
I’m going for the number 113.
Hey my personal space
2 Likes
without thinking my number is 4995 !
How about a year? 1961. not random, but lucky for me.
1719 - because most of my initial guesses were taken 
That’s the one I wanted!
But I already built two of these and 2 ladder filter and will probably buy the new filter, so I will not take part
1 Like
My random number generator says 2687.
Random number is 2256
My guess is 10 
1001
Spaces <> chars?